Title

Great Ocean Road MLS DEM 

Time period

2020-02-182020-02-21 

Horizontal Accuracy

0.15m  

Vertical Accuracy

0.05m  

Code

MGA Zone 54 GDA2020 

Title

ESRI Ascii 

Topic category

• Elevation

Use limitation

General 

Classification

Unclassified  

Description

The DEM was generated using LiDAR point cloud class 2 (ground) to define the bare earth ground surface. LAStools las2dem command was used to generate the surface. This tool reads LIDAR points from the LAS/LAZ format (or some ASCII formats) and triangulates them temporarily into a TIN with a user defined interpolation distance. LAStools then applies a TIN to raster conversion to create the 10cm DEM raster dataset. 

Classification

Unclassified  

Attribute Quality

Positional Accuracy

Conceptual Consistency

Comments

The DEM surface is equivalent of a traditional and standard ground surface model and has been generated using the ground class LiDAR points. As such, the extent of the DEM varies in relation to the line of sight from the car mounted MLS sensor to the ground. In locations where the line of sight to the ground is interrupted close to the car, for example within towns or amongst close forest or cliiffs, the extent of DEM is relatively shorter than it is in more open landscapes. 

Missing Data

Comments

Complete coverage of Great Ocean Road. 

Excess Data

Platform Type

Ground  

Assembly

Single  

Tile Size

0.5 km  

Raster Type

DEM  

X Pixel Resolution (cm)

0.1cm  

Y Pixel Resolution (cm)

0.1cm  

Seamlessness

Full  

Number of Bands

1 

Band List

1  

Resampling Kernel

Not Entered  

Rectification Type

Not Rectified  

Platform Name

Not Entered  

DEM Creator

Supplier